RU2382159C1 - Secret block for level locks - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: secret block comprises sides with recesses for interaction with key bits, a set of levels and crossbar. Slot for locking stub is provided on sides. Crossbar is rigidly fixed among sides. Set of levels is movably installed on locking stubs. Fixed separating plates are installed between levels. Rectangular window is arranged on levels field for compression spring, slots for one of guide stubs, code notches and dead locking window. Code notches interact with code combination on key bits. Dead locking window has locking ledges and counter-ledges for interaction with locking stub. Code notches of levels are arranged at least from three stages. Recess is arranged on facet of locking window contour between counter-ledges.

EFFECT: reduced size of levels, simplified technology of stamping ans reduced metal intensity of lock.

4 dwg

Description

The invention relates to locks with plate delays, moving when the key is turned and following the movement of the deadbolt, and can be used in the manufacture of locks of mass demand in mortise and overhead versions, including for locking objects with high-strength doors.

A known secret block for level locks [1], containing sidewalls with selections for interaction with key barbs and a slot for a locking column with bolts rigidly fixed between them and a set of levers movably mounted on the guide columns with fixed dividing plates installed between them.

A rectangular window for a compression spring is made on the suvald field, code cutouts for interacting with the code combination on the key barbs are made in a pair of steps on both sides of the symmetry axis of the suvald on the lateral faces parallel to the direction of movement of the secret block, and the guide bars are located in the rectangular window for the compression spring moreover, one of them is made movable together with the levers moving from the turn of the key.

This design allows you to reduce the height of the levers and, accordingly, reduce the height of the lock to the requirements of GOST 5089-97 (p. 14), but due to the fact that the compression forces of the spring and the impact of the key bar on the set of levers create a couple of forces acting on a movable guide column, creating a turning force due to asymmetric friction against the walls of the guide window on the sides of the secret unit, as a result of which there is a possibility of its jamming in the guide grooves on the sides of the secret unit and failures in the castle.

In addition, the implementation of the lock window of the leopard open on one of its lateral faces and the dispersal of code cuts along two opposite sides complicates the technology of stamping leopard and leads to an unjustified amount of marriage.

A known secret block for level locks [2], containing sidewalls with selections for interaction with key barbs and a slot for a locking column with bolts rigidly fixed between them and a set of level plates movably mounted on guide columns, on the field of which rectangular windows for compression springs are made, a groove for one of the guide columns and code cutouts for interacting with the code combination on the key barbs, made on the verge of the level of the levers facing the keyhole, as well as the shut-off window with abutment protrusions and opposing protrusions for interacting with the locking column, while there are two rectangular windows for compression springs, the locking window is made in the form of a closed loop, the code cut-out has one step, instead of the second stage, a selection for key barbs is made, matching with one of the same samples on the sides of the secret block, and the groove for one of the guide columns is made blind and is located between the locking window and the edge of the contour of the levers with code cut-out.

The implementation in a known block of a secret of all the guide columns rigidly fixed in the sides, as well as the locking window for interacting with the locking column deaf, without going to one of the faces of the levers, provides it with high reliability and virtually eliminates the rejection during stamping of components, but eliminates the ability to perform locks of mass demand, in particular, of the first class according to GOST 5089-97, according to this scheme the dimensions of the levers are larger than the permissible locks for this class of locks by 20 mm in height and by 6 mm in width, which significantly limits the scope of the known technical solution to the second and subsequent classes according to GOST 5089-97 (pp. 2, 14).

The claimed secret block for level locks contains sidewalls with selections for interaction with key barbs and a slot for a locking column with a bolt rigidly fixed between them and a set of levers movably mounted on the guide columns with fixed dividing plates installed between them.

A rectangular window for a compression spring, grooves for one of the guide columns and code cutouts for interacting with a code combination on key beards made on the verge of a level of a suvald turned to the keyhole, as well as a locking window with locking protrusions and opposing protrusions for interaction with a locking column.

The suvald code notches are made of at least three steps, and on the verge of the lock window contour facing the leopard code notches, a sample for another guide column is made between the opposing protrusions.

The technical advantages of the claimed block of secret for level locks compared with the prototype are as follows:

- the implementation of the code cuts of the levers of at least three steps located symmetrically with respect to the vertical axis of the levers in combination with two grooves for the upper (according to the drawing) guide column, provides the possibility of obtaining levers with a new code combination by flipping it when assembling the back side, and the formation of new code combinations on the chipping dies in one press stroke;

- the execution on the verge of the contour of the locking window facing the suvald code cutouts between the opposing protrusions of the locking sampling window for another guide column, together with the location of the first locking column outside the rectangular window for the compression spring, makes it possible to reduce the height of the levers with its working stroke of 5 mm by 20 mm and the width of the leopard with a step of moving the block of secret 12 mm by the value of its half, i.e. by 6 mm.

The combination of these technical advantages allows you to get a technical result, which consists in reducing the size of the levers to match the size of the block of secret to the requirements of GOST 5089-97, in simplifying the technology of stamping and in reducing the metal consumption of locks with the declared block of secret, due to the reduction in the size of levers.

The above drawings illustrate the secret block for level locks, where Fig. 1 shows a general view of it with a partially open set of levers and the location of the keyhole relative to the set of levers with the secret block completely pushed into the lock case; figure 2 is a transverse section along the guide posts and the compression spring; figure 3 is a demonstration sketch of the leopard and figure 4 is the same, stationary separation plate.

The secret block for level locks contains sidewalls 1 with selections 2 and 3 for interaction with key beards 4 and a slot 5 for a locking column 6, rigidly fixed in the case details of the lock (not shown in the drawings).

A bolt 8 is rigidly fixed between the sidewalls 1 by means of rivets 7, and a set of levers 11 is mounted movably on the guide posts 9 and 10 between their free ends, each of which has a rectangular window 12 for the compression spring 13, grooves 14 for the guide post 9 and, at least three code cutouts 15, 16 and 17, two of which are aligned with samples 2 and 3 on the sidewalls 1.

On the field of the suvald 11, between the rectangular window 12 and the code cutouts 15, 16 and 17, a locking window is made with the locking protrusions 18 and the opposing protrusions 19 for interacting with the locking column 6, and on the border of the locking window facing the code cutouts 15, 16 and 17, between the protrusions 19, an open sample 20 is made for the guide column 10.

Between all adjacent levers 11, dividing plates 21 are installed, on the field of which a rectangular window 22 is made, identical to the window 12 on the levers 11, and two identical grooves 23 and 24, which make the dividing plates 21 stationary relative to the guide posts 9 and 10, and between the rectangular window 22 and the groove 24 is made a slot 25 for the locking column 6, identical to the slot 5 on the sidewalls 1 and combined with them when assembling the block of secret.

When the key 4 is turned counterclockwise (Fig. 1) to 60 °, its beard, interacting with the code cutouts 15 of the set of level 11, lifts it synchronously to a predetermined height until the cut is combined between the locking protrusion 18 and the counter protrusion 19 with slots 5 and 25 on the sides 1 and dividing plates 21, respectively, while the presence of dividing plates 21 between adjacent levers eliminates their direct contact with each other, and therefore, mutual friction against each other, uncontrolled lift when turning the key and accidental engagement of steps yami code combination on his beards "not his" leverage.

With a further turn of the key 4 from 60 ° to 120 °, the levers 11, having risen to a predetermined height, cease to rise, and the secret block moves freely relative to the locking column 6 due to the interaction of the beard of the key 4 with selection 2 on the sidewalls 1 and step 15 of the combination code 11 by the value of the step of movement (in this example, 12 mm), and with a further turn of the key 4 from 120 ° to 180 °, the movement of the secret block stops, and the leveling blocks 11 descend (according to the drawing) all the way along the guide columns 9 and 10 under the action springs 13, are fixed on the locking column 6 and securely hold the block of secretion in an intermediate position.

Moving the secret block by the amount of the next step is carried out similarly with the only difference being that the other beard of key 4 interacts with a selection of 3 sidewalls 1 and step 16 of the combination code of the set of levers 11, and when turning the reverse side instead of code cut 16, code cut 17 becomes.

Moving the secret block to open the lock is carried out in the reverse order, while the probability of its opening using surrogate keys is negligible, because It is practically impossible to provide simultaneous lifting of the entire set of levers to a strictly specified height without the appropriate code combination on the key barbs.

Information sources

1. Patent of the Russian Federation No. 2221919 dated 05/28/2002, IPC7 EV 25/00.

2. RF patent No. 2234580 dated October 13, 2002. IPC7 EV 25/02 (prototype).

Claims (1)

A secret block for level locks containing sidewalls with selections for interaction with key barbs and a slot for a locking column with a bolt rigidly fixed between them and a set of levers movably mounted on the guide columns with fixed dividing plates installed between them, while a rectangular window is made on the field of levers for a compression spring, grooves for one of the guide columns and code cutouts for interacting with the code combination on the key barbs, made on the edge of the contour and the suvald facing the keyhole, as well as a blind locking window with locking protrusions and counter-protrusions for interacting with the locking column, characterized in that the code grooves of the suvald are made of at least three steps, and on the verge of the locking window contour facing code leaks suvald, between the protrusions sampled for another guide column.

Images